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PAR-FAR Sensors

Apogee PAR-FAR sensors combine two photodetectors to measure photosythetically active radiation and far-red radiation.
Unique two-band sensor for measuring both the PAR (PPFD) and Far-red outputs of electric grow lights
The new Apogee PAR-FAR sensor is a research-grade tool for measuring both the traditional PPFD photosynthetic photon flux and separately quantifying the photon flux of far-red photons (700-760 nm). The outputs include the traditional quantum flux, the far-red photon flux, and the far-red fraction (far-red photon flux density / sum of PPFD and far-red photon flux density).
This sensor quantifies far-red photons, and for many applications it reduces the need for a more complex measurement with a spectroradiometer.
Spectral Response
The PAR-FAR sensor has a spectral range of 400 to 700 nm ± 5 nm (PAR) and 702 to 761 nm ± 5 nm (Far-red). The spectral responses can be seen in the graph below.
Graph showing the spectral responses of the PAR-FAR sensor (spectral range of 389 to 692 nm ± 5 nm (PAR) and 702 to 761 nm &plusm; 5 nm (Far-red)).
Rugged, Self-cleaning Housing
The patented domed shapped sensor head (diffuser and body) facilitates runoff of dew and rain to keep the sensor clean and minimizes errors caused by dust blocking the radiation path. Sensors are housed in a rugged, anodized aluminum body and electronics are fully-potted.
An Apogee PAR-FAR sensor head.
An amplified PAR-FAR sensor with a built-in cable connector.
Typical Applications
Applications include monitoring plant light environments, researching plant morphogenic activity, and photobiology studies.
Mounting
The AL-120 Solar Mounting Bracket with Leveling Plate facilitates mounting the sensor to a mast or pipe. The AL-100 Solar Sensor Leveling Plate is designed to level the sensor while sitting on a flat surface or mounting to a surface.
Output Options
Available as an analog output or in digital SDI-12 or Modbus communication protocols.
High Quality Cable
Pigtail-lead sensors feature an IP68, marine-grade stainless-steel cable connectors built directly into the sensor head to simplify sensor removal for maintenance and recalibration. Cable is shielded-twisted-pair wire with a TPR jacket for high water resistance, UV stability, and flexibility in cold conditions.
Warranty and Support
All Apogee products are backed by an industry-leading four year warranty and outstanding customer support
Learn more about PAR-FAR sensor specifications.

Specifications

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Watch videos to learn more about our PAR-FAR sensors.

Videos

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Product support information for PAR-FAR sensors.

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P2-141 Package: microCache and PAR-FAR Sensor with 30 cm cable
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P2-141 Package: microCache and PAR-FAR Sensor with 30 cm cable

$767.00
P2-142 Package: microCache and PAR-FAR Sensor with 2 meter cable
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P2-142 Package: microCache and PAR-FAR Sensor with 2 meter cable

$787.00
S2-141-SS PAR-FAR Sensor
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S2-141-SS PAR-FAR Sensor

$498.00
S2-441-SS SDI-12 PAR-FAR Sensor
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S2-441-SS SDI-12 PAR-FAR Sensor

$598.00
S2-442-SS Modbus Digital Output PAR-FAR Sensor
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S2-442-SS Modbus Digital Output PAR-FAR Sensor

$598.00
AT-100 microCache Bluetooth Micro Logger
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AT-100 microCache Bluetooth Micro Logger

$319.00
AL-100: Solar Sensor Leveling Plate
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AL-100: Solar Sensor Leveling Plate

$44.00
AL-120 Solar Mounting Bracket with Leveling Plate
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AL-120 Solar Mounting Bracket with Leveling Plate

$64.00
AM-310: Sensor Wand
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AM-310: Sensor Wand

$62.00
AC-422 Modbus to USB Converter
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AC-422 Modbus to USB Converter

$150.00

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About Apogee Instruments, Inc.

Address:
721 West 1800 North
Logan, UT 84321
United States of America

Hours: Monday-Friday 8 AM- 5 PM MST

Main Line / Order Status: (435) 792-4700
or sales@apogeeinstruments.com

Technical Sales and Support: (435) 245-8012
or techsupport@apogeeinstruments.com

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  • products
    • Pyranometers
    • Quantum (PAR) Sensors / Meters
    • Daily Light Integral Measurement
    • Infrared Radiometers
    • Aspirated Radiation Shield
    • Spectroradiometers
    • Net Radiometer
    • Pyrgeometers
    • Humidity Probes
    • Temperature Sensors
    • Leaf and Bud Temperature Sensor
    • Oxygen Sensors
    • UV Sensors
    • Chlorophyll Concentration
    • Barometric Pressure
    • PAR Meters for Aquariums
    • microCache Bluetooth Micro Logger
    • Red - Far-red and PAR-FAR Sensors
    • Photometric Sensor
    • Solar Energy PV Monitoring
    • Accessories
    • Calibration Services
    • Replacement Cables
  • About Us
    • Contact Us
    • International Distributors
      • Apogee Instruments Distributors - Brazil
      • Apogee Distributor - Campbell Scientific Southeast Asia
    • Careers
    • Apogee News
    • Company History
    • Event Calendar
    • Staff Listing
    • Apogee Cares
    • Our Founder - Dr. Bruce Bugbee
    • Distributor Application
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